Evidence map›Paper›PMID 31133478›Full record

ArticleBrain stimulation

Combining reward and M1 transcranial direct current stimulation enhances the retention of newly learnt sensorimotor mappings.

Danny A Spampinato, Zabina Satar, John C Rothwell

Abstract read
In one paragraph

Article in Brain stimulation. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  12. Reinforcement feedback impairs locomotor adaptation and retention.Frontiers in behavioral neuroscience · 2024
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  17. The cost of correcting for error during sensorimotor adaptation.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  18. Multiple Motor Learning Processes in Humans: Defining Their Neurophysiological Bases.The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry · 2021
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Danny A SpampinatoUniversity College of London, UK. Electronic address: d.spampinato@ucl.ac.uk.
Zabina SatarUniversity College of London, UK.
John C RothwellUniversity College of London, UK.

Funding

Medical Research Council MR/P006671/1
6 · The paper itself

Abstract

backgroundReward-based feedback given during motor learning has been shown to improve the retention of the behaviour being acquired. Interestingly, applying transcranial direct current stimulation (tDCS) during learning over the primary motor cortex (M1), an area associated with motor retention, also results in enhanced retention of the newly formed motor memories. However, it remains unknown whether combining these distinct interventions result in an additive benefit of motor retention.

methodsWe investigated whether combining both interventions while participants learned to account for a visuomotor transformation results in enhanced motor retention (total n = 56; each group n = 14). To determine whether these interventions share common physiological mechanisms underpinning learning, we assessed motor cortical excitability and inhibition (i.e. SICI) on a hand muscle before and after all participants learned the visuomotor rotation using their entire arm and hand.

resultsWe found that both the Reward-Stim (i.e. reward + tDCS) and Reward-Sham (i.e. reward-only) groups had increased retention at the beginning of the retention phase, indicating an immediate effect of reward on behaviour. However, each intervention on their own did not enhance retention when compared to sham, but rather, only the combination of both reward and tDCS demonstrated prolonged retention. We also found that only the Reward-Stim group had a significant reduction in SICI after exposure to the perturbation.

conclusionsWe show that combining both interventions are additive in providing stronger retention of motor adaptation. These results indicate that the reliability and validity of using tDCS within a clinical context may depend on the type of feedback individuals receive when learning a new motor pattern.

Indexed as

RewardAdaptation, PhysiologicalAdolescentAdultBrain MappingFemaleHumansLearningMaleMotor CortexMuscle, SkeletalPsychomotor PerformanceTranscranial Direct Current StimulationYoung AdultBrain stimulationMotor learningRewardTDCSTMS

Identifiers

PMID31133478
PMCPMC6709642

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.